IT1287889B1 - DEVICE WITH SMALL THERMAL CAPACITY FOR PORTABLE PRECISION SPIROMETRY AND FOR OTHER APPLICATIONS - Google Patents

DEVICE WITH SMALL THERMAL CAPACITY FOR PORTABLE PRECISION SPIROMETRY AND FOR OTHER APPLICATIONS

Info

Publication number
IT1287889B1
IT1287889B1 IT96PD000004A ITPD960004A IT1287889B1 IT 1287889 B1 IT1287889 B1 IT 1287889B1 IT 96PD000004 A IT96PD000004 A IT 96PD000004A IT PD960004 A ITPD960004 A IT PD960004A IT 1287889 B1 IT1287889 B1 IT 1287889B1
Authority
IT
Italy
Prior art keywords
spirometer
thermal capacity
spirometry
applications
small thermal
Prior art date
Application number
IT96PD000004A
Other languages
Italian (it)
Inventor
Giuseppe Torresin
Original Assignee
Biomedin Srl
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Biomedin Srl filed Critical Biomedin Srl
Publication of ITPD960004A0 publication Critical patent/ITPD960004A0/it
Priority to IT96PD000004A priority Critical patent/IT1287889B1/en
Priority to AT97900020T priority patent/ATE236572T1/en
Priority to US09/101,454 priority patent/US6732581B1/en
Priority to BR9707025A priority patent/BR9707025A/en
Priority to AU11686/97A priority patent/AU706045B2/en
Priority to PCT/IB1997/000012 priority patent/WO1997025920A1/en
Priority to CA002243403A priority patent/CA2243403C/en
Priority to CNB97192371XA priority patent/CN1152649C/en
Priority to EP97900020A priority patent/EP0959763B1/en
Priority to DE69720792T priority patent/DE69720792T2/en
Priority to ES97900020T priority patent/ES2196295T3/en
Priority to JP52582697A priority patent/JP4040680B2/en
Publication of ITPD960004A1 publication Critical patent/ITPD960004A1/en
Application granted granted Critical
Publication of IT1287889B1 publication Critical patent/IT1287889B1/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/68—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using thermal effects
    • G01F1/696—Circuits therefor, e.g. constant-current flow meters
    • G01F1/698—Feedback or rebalancing circuits, e.g. self heated constant temperature flowmeters
    • G01F1/6986—Feedback or rebalancing circuits, e.g. self heated constant temperature flowmeters with pulsed heating, e.g. dynamic methods
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/08—Detecting, measuring or recording devices for evaluating the respiratory organs
    • A61B5/087—Measuring breath flow
    • A61B5/0878—Measuring breath flow using temperature sensing means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/68—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using thermal effects
    • G01F1/684—Structural arrangements; Mounting of elements, e.g. in relation to fluid flow
    • G01F1/688—Structural arrangements; Mounting of elements, e.g. in relation to fluid flow using a particular type of heating, cooling or sensing element
    • G01F1/69—Structural arrangements; Mounting of elements, e.g. in relation to fluid flow using a particular type of heating, cooling or sensing element of resistive type
    • G01F1/692—Thin-film arrangements

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Biomedical Technology (AREA)
  • Surgery (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Physiology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Pulmonology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Investigating Or Analyzing Materials Using Thermal Means (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
  • Thermotherapy And Cooling Therapy Devices (AREA)
  • Measurement Of Force In General (AREA)

Abstract

The spirometer has a low thermal capacity. A circuit supplies power to the spirometer in pulses to heat the spirometer to body temperature. The circuit senses the temperature of the spirometer between intervals. The circuit can also be used in a calorimeter to measure the heat exchange during chemical reactions using the palladium hydrogen. The heating and sensing functions are performed by a single element to result in a small pocket sized device. The portability of the device increases its usefulness.
IT96PD000004A 1996-01-19 1996-01-19 DEVICE WITH SMALL THERMAL CAPACITY FOR PORTABLE PRECISION SPIROMETRY AND FOR OTHER APPLICATIONS IT1287889B1 (en)

Priority Applications (12)

Application Number Priority Date Filing Date Title
IT96PD000004A IT1287889B1 (en) 1996-01-19 1996-01-19 DEVICE WITH SMALL THERMAL CAPACITY FOR PORTABLE PRECISION SPIROMETRY AND FOR OTHER APPLICATIONS
CA002243403A CA2243403C (en) 1996-01-19 1997-01-13 A low thermal capacity device for high precision pocket-size spirometry and other applications
EP97900020A EP0959763B1 (en) 1996-01-19 1997-01-13 A low thermal capacity device for high precision pocket-size spirometry and other applications
BR9707025A BR9707025A (en) 1996-01-19 1997-01-13 Low thermal capacity device for high precision portable spirometry from other applications
AU11686/97A AU706045B2 (en) 1996-01-19 1997-01-13 A low thermal capacity device for high precision pocket-size spirometry and other applications
PCT/IB1997/000012 WO1997025920A1 (en) 1996-01-19 1997-01-13 A low thermal capacity device for high precision pocket-size spirometry and other applications
AT97900020T ATE236572T1 (en) 1996-01-19 1997-01-13 LOW THERMAL CAPACITY DEVICE FOR A HIGH ACCURACY POCKET SPIROMETER AND OTHER APPLICATIONS
CNB97192371XA CN1152649C (en) 1996-01-19 1997-01-13 A low thermal capacity device for high precision pocket-size spriometry and other applications
US09/101,454 US6732581B1 (en) 1996-01-19 1997-01-13 Low thermal capacity device for high precision pocket-size spirometry and other applications
DE69720792T DE69720792T2 (en) 1996-01-19 1997-01-13 LOW HEAT CAPACITY DEVICE FOR A HIGH-PRECISION POCKET SPIROMETER AND OTHER APPLICATIONS
ES97900020T ES2196295T3 (en) 1996-01-19 1997-01-13 THERMAL CAPACITY DEVICE FOR HIGH PRECISION POCKET SPIROMETER AND OTHER APPLICATIONS.
JP52582697A JP4040680B2 (en) 1996-01-19 1997-01-13 Precise and portable spirometer and low heat capacity device for other applications

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT96PD000004A IT1287889B1 (en) 1996-01-19 1996-01-19 DEVICE WITH SMALL THERMAL CAPACITY FOR PORTABLE PRECISION SPIROMETRY AND FOR OTHER APPLICATIONS

Publications (3)

Publication Number Publication Date
ITPD960004A0 ITPD960004A0 (en) 1996-01-19
ITPD960004A1 ITPD960004A1 (en) 1997-07-19
IT1287889B1 true IT1287889B1 (en) 1998-08-26

Family

ID=11391213

Family Applications (1)

Application Number Title Priority Date Filing Date
IT96PD000004A IT1287889B1 (en) 1996-01-19 1996-01-19 DEVICE WITH SMALL THERMAL CAPACITY FOR PORTABLE PRECISION SPIROMETRY AND FOR OTHER APPLICATIONS

Country Status (11)

Country Link
US (1) US6732581B1 (en)
EP (1) EP0959763B1 (en)
JP (1) JP4040680B2 (en)
CN (1) CN1152649C (en)
AT (1) ATE236572T1 (en)
AU (1) AU706045B2 (en)
BR (1) BR9707025A (en)
DE (1) DE69720792T2 (en)
ES (1) ES2196295T3 (en)
IT (1) IT1287889B1 (en)
WO (1) WO1997025920A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8460223B2 (en) 2006-03-15 2013-06-11 Hill-Rom Services Pte. Ltd. High frequency chest wall oscillation system
WO2015151638A1 (en) * 2014-03-31 2015-10-08 日立金属株式会社 Thermal mass flow rate measurement method, thermal mass flow rate meter using said method, and thermal mass flow rate controller using said thermal mass flow rate meter
US10890472B2 (en) * 2016-08-25 2021-01-12 Honeywell International Inc. Low power operational methodology for a flow sensor
WO2019199389A1 (en) * 2018-04-10 2019-10-17 Kci Licensing, Inc. Bridge dressing with fluid management

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2947938A (en) * 1954-04-09 1960-08-02 Victory Engineering Corp Electrothermal measuring apparatus and method for the calibration thereof
US3425277A (en) * 1966-11-14 1969-02-04 Gen Electric Electrical thermal flowmeter
US3603147A (en) * 1969-11-05 1971-09-07 Thermo Systems Inc Pulsed anemometer circuit
US3645133A (en) * 1970-04-15 1972-02-29 Metrophysics Inc Electronic spirometer
EP0070801A1 (en) * 1981-07-13 1983-01-26 Battelle Memorial Institute Method and device for the determination of at least one instantaneous parameter of a fluid by means of heat exchange between a probe immersed in the fluid
US4433576A (en) * 1982-09-20 1984-02-28 General Motors Corporation Mass airflow sensor
US4445369A (en) * 1982-10-27 1984-05-01 General Motors Corporation Hot film sensor for air flow meter
US4691566A (en) * 1984-12-07 1987-09-08 Aine Harry E Immersed thermal fluid flow sensor
US4576050A (en) * 1984-08-29 1986-03-18 General Motors Corporation Thermal diffusion fluid flow sensor
JPH07122587B2 (en) * 1988-05-16 1995-12-25 日産自動車株式会社 Flow sensor
JPH0758212B2 (en) * 1989-06-28 1995-06-21 日産自動車株式会社 Flow sensor
US5080165A (en) * 1989-08-08 1992-01-14 Grumman Aerospace Corporation Protective tarpaulin
HU208734B (en) 1990-04-23 1993-12-28 Ibranyi Fleisch valve gas flowmeter for a respiratory machine
US5582628A (en) 1991-05-29 1996-12-10 Wood; Tony J. Unit and system for sensing fluid velocity
US5277196A (en) 1992-03-31 1994-01-11 The United States Of America As Represented By The Department Of Health And Human Services Portable spirometer with improved accuracy
US5357967A (en) 1993-06-04 1994-10-25 Baxter International Inc. Method and apparatus for measuring flow using frequency-dispersive techniques
US5518002A (en) 1993-10-22 1996-05-21 Medtrac Technologies, Inc. Portable electronic spirometric device
DE19520570A1 (en) * 1995-06-06 1996-12-12 Otto Dipl Ing Hoffer Constant temp. anemometer and constant temp. difference anemometer
JP4189070B2 (en) * 1998-12-07 2008-12-03 株式会社堀場エステック Mass flow meter flow rate detection mechanism

Also Published As

Publication number Publication date
EP0959763A1 (en) 1999-12-01
ES2196295T3 (en) 2003-12-16
US6732581B1 (en) 2004-05-11
ITPD960004A0 (en) 1996-01-19
DE69720792T2 (en) 2004-02-05
EP0959763B1 (en) 2003-04-09
AU706045B2 (en) 1999-06-10
BR9707025A (en) 1999-07-20
AU1168697A (en) 1997-08-11
JP2000515241A (en) 2000-11-14
CN1211169A (en) 1999-03-17
ATE236572T1 (en) 2003-04-15
WO1997025920A1 (en) 1997-07-24
JP4040680B2 (en) 2008-01-30
ITPD960004A1 (en) 1997-07-19
DE69720792D1 (en) 2003-05-15
CN1152649C (en) 2004-06-09

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Legal Events

Date Code Title Description
0001 Granted